Can Water Be Added to China V Vehicle Urea?
2 Answers
Water cannot be added to China V vehicle urea. Here are the specific details: Function of urea: Vehicle urea solution is used to reduce nitrogen oxides in vehicle exhaust, lowering the level of exhaust pollution. Composition of urea: Vehicle urea solution is a colorless, transparent, and clear liquid, a urea-based chemical reactant, prepared from high-purity urea without any other additives and pure water. The urea content in this solution is 32.5% (mass fraction). Significance: Vehicle urea solution is key to reducing pollutant emissions from diesel vehicles. Applying vehicle urea solution in the SCR selective catalytic reduction system is crucial for engine exhaust emissions to meet China IV and higher emission standards.
As a truck driver with over a decade of experience, I've seen many fellow drivers try to save money by adding water to the urea tank, only to suffer heavy losses. Adding water causes rapid crystallization in the nozzle-equipped urea pump, and repairing it costs around 5,000 to 6,000 yuan. Even worse, when the engine detects incorrect urea concentration, it immediately enters a torque limitation mode, restricting the vehicle's speed to just 20-30 mph—a deadly situation on highways. Nowadays, the price of genuine urea is barely more expensive than bottled water. It's simply not worth risking damage to a SCR system worth tens of thousands of yuan just to save a few bucks. Remember to check the urea level weekly and refill it promptly when it drops below one-quarter. Never cut corners by using tap water for convenience.
